While New Zealand may not be a climbing destination per se, there is certainly enough rock to keep you occupied while you're here. If you enjoy mountain biking, hiking, fishing, kayaking, surfing, skiing, or just being outside in a gorgeous location, as well as climbing, this place is for you.
As far as climbing goes you'll have access to all types, from bouldering to alpine, within a day or two drive. For beta, climbnz.org.nz is probably the best resource on the web. Its not as easy to navigate as MP, but the site gets frequently updated with the latest route info. If you plan on spending time in a specific area do yourself a favor and buy the guide book. The friendly local climbers are very helpful, but with so few people in such a big country, you'll often find a crag, or beach, to yourself.